Tensile strength of glass

Note in both cases that the specific tensile strength of glass fibres is very much higher than the specific tensile strength of the matrix. The ratio is 4.8 for dry samples and 3.5 at 50% RH. 

Effect of surface treatment on the tensile strength of glass beads-polyester composites... 

FIGURE 13-29 The tensile strength of glass fibers versus fiber thickness [redrawn from a figure in J. E. Gordon, The New Science of Strong Materials, Penguin Books (1991)). 

The danger of temporary stress lies in the fact that too fast cooling may bring about fracture when the tensile strength of glass has been exceded. Permanent stress may lead to the same consequence in the final stage of temperature equalization. Badly distributed permanent stress, which always includes its tensile component, will reduce the final strength of the ware and thus impair its value. 

Both ciystal forms of titania, rutile and anatase, have a high Mohs hardness rating and are abrasive. For example, the pigment particles can etch glass fibers and greatly reduce the tensile strength of glass fiber reinforced thermoplastic blends and alloys. 

Figure 8.2 Tensile strength of glass fibers as a function of fiber diameter. (After Griffith, 1920.)...

Figure 8.6 The tensile strength of glass is shown to increase linearly with with the inverse of Vc. (Data from Griffith, 1920.)...

The maximum tensile strength of glass fibers is 2,500 N mm . Yams and twisted yams reach strength levels of 1,300-1,500 N mm . The relation between... 

Fig. 4.17 Tensile strength of glass fiber reinforced PBT in dependence on temperature [12Cam].

The tensile strength of glass fibres reduces at elevated temperatures but can be considered constant for the range of temperatures at which polymer matrices are exposed. The tensile strength also reduces with chemical corrosion and with time under sustained loading. 

Miwa M, Nakayama A, Ohsawa T, Hasegawa A (1979) Temperature dependence of the tensile strength of glass fiber-epoxy and glass fiber-unsaturated polyester composites. J AppI Polym Sci 23 2957... 

Figure 3.31 Tensile strength of glass fiber/mineral filled PP composite effect of Polybond 3150 addition. (From Uniroyal Chemical Co., Inc., literature,)...

For the first step, the relationship between the tensile strength retention (the percentage of residual strength over original tensile strength) of glass fibre reinforced concrete bars and the exposure time for the accelerated test was defined as ... 

Tensile strength of glass fibers which have not contacted other gas, solid, or liquid materials and have been stored at ambient room temperature. 

Thermoset matrices have -moduli between 3000 and 4000 MPa while those of E-glass reinforcements are about 70 000 MPa. The tensile strength of glass fibers is around 2400 MPa and that of an UP resin about 50-60 MPa. The glass fiber content of the composite is usually between 25 and 75%. 

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